Otro
Leveraging wireless devices for networked control systems in industrial applications
Registro en:
Brazilian Journal of Instrumentation and Control, v. 1, n. 1, p. 21-28, 2013.
2318-4531
ISSN2318-4531-2013-01-01-21-28.pdf
0000-0003-3375-096X
0072632067545698
2341590343643296
Autor
Godoy, Eduardo Paciencia
Oliveira, Thiago de Almeida
Scorzoni, Fernando
Porto, Arthur José Vieira
Resumen
Networked control systems (NCSs) are distributed control system in which sensors, actuators and controllers are physically separated and connected through communication networks. NCS represent the evolution of networked control architectures providing greater modularity and control decentralization, ease maintenance and diagnosis and lower cost of implementation. A recent trend in this research topic is the development of NCS using wireless networks(WNCS)which enable interoperability between existing wiredand wireless systems. This paper presents the feasibility analysis of using serial to wireless converter as a wireless sensor link in NCS. In order to support this investigation, relevant performance metrics for wireless control applications such as jitter, time delay and messages lost are highlighted and calculated to evaluate the wireless converter capabilities. In addition the control performance of an implemented motor control system using the converter is analyzed. Experimental results led to the conclusion that serial ZigBee device isrecommended against the Bluetooth as it provided better metrics for control applications. However, bothdevices can be used to implement WNCS providing transmission rates and closed control loop times which are acceptable for NCS applications.Moreoverthe use of thewireless device delay in the PID controller discretization can improve the control performance of the system.